This dehumidifier help to freshen the air and absorb damp and are perfect for use in small and confined spaces. They can absorb up-to 100ml of moisture and will last for 6-8 weeks in typical ambient conditions. Their spill-proof design makes them safe for use throughout households and they are ideal for small rooms, utility rooms, bathrooms, wardrobes, cupboards and cars. The system is noiseless and requires no electricity or batteries, begins working straight away and provides you with a safe disposable solution. The hygroscopic attract moisture like a magnet does iron filings and help to remove excess moisture preventing condensation, mould, mildew and unsightly damp. Always read instructions on the product packaging before use.